On my mobile phone, Android, using both the built in browser and Chrome, there is a huge white space between the logo and page title. The menu button is centered between vertically. This is not a problem on Pages or Portfolio Items, just on Posts.

It’s crazy but the WordPress upgrade to version 3.8 fixed it. I hit the button by accident while I was upgrading a plugin because I never apply an upgrade on Day 1 … but it fixed it. My theory is that it broke whatever plugin was causing this issue ;)